Fig. 2 - Sufficient visualisation
of the distal third of the common bile duct with conventional ultrasonography.
Good visualisation with THI: evaluation
of the distal third of the common bile duct was rated as excellent; better
resolution allows evaluation of medial insertion of the cystic stump.
The better signal-to-noise ratio allows for better diagnostic confidence
in excluding stones.
Fig. 3 - Conventional ultrasonography
permits sufficient evaluation of a small stone in the distal portion of
the common bile duct.
Tissue harmonic imaging: excellent
identification and better detail resolution of the stone thanks to better
axial and lateral resolution. The shadow cone is also well visible.
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